Chloé Brière is Professor of European Law and Director of the Institut d’Etudes Européennes (IEE) at the Université libre de Bruxelles, Belgium. Amandine Crespy is Professor of Political Science and EU studies at CEVIPOL and the Institut d’Etudes Européennes (IEE) at the Université libre de Bruxelles, Belgium. She is also a Visiting Professor at the College of Europe in Bruges, Belgium.